CN119771749B - Screen disc and disc screen - Google Patents

Abstract

The present invention provides a sieve plate and a disc screen, and relates to the technical field of disc screens. The sieve plate includes: a panel, which is a frame-type structure; a side panel, a pair of side panels are sealed at the open ends on both sides of the panel, and are provided with connection holes that allow a drive shaft to pass through and connect; a distance ring, which is supported between the pair of side panels and cooperates with the panel to define the hollow space between the pair of side panels. The scheme of the present invention forms a sieve plate by a panel, a side panel and a distance ring, and the overall structure is simple. While ensuring the overall strength of the sieve plate, the sieve plate is a hollow structure, which reduces the weight of the sieve plate, can increase the number of sieve plates installed on the drive shaft, and helps to expand the particle size range of the disc screen, thereby expanding the scope of application of the disc screen.

Description

A sieve plate and a disc sieve

Technical Field

The present invention relates to the technical field of disc screens, in particular to a sieve plate and a disc screen.

Background Art

The sieve plate is an important part of the disc screen. Several sieve plates are installed on the drive shaft in sequence, and the sieve plates on two adjacent drive shafts cooperate with each other to screen the materials. When the diameter of the drive shaft remains unchanged, the weight of the sieve plate affects the number of sieve plates installed on the drive shaft, and the number of sieve plates installed on the drive shaft directly affects the applicable material particle size range of the disc screen; the current sieve plates are heavier, which affects the number of sieve plates installed on the drive shaft, thereby affecting the applicable material particle size range of the disc screen.

Summary of the invention

The present invention provides a sieve plate and a disc screen. The sieve plate is formed by a surrounding plate, a side plate and a distance ring. The overall structure is simple. While ensuring the overall strength of the sieve plate, the sieve plate has a hollow structure, which reduces the weight of the sieve plate and can increase the number of sieve plates installed on the drive shaft, which helps to expand the screening particle size range of the disc screen, thereby expanding the application range of the disc screen.

In order to solve the above technical problems, the technical solution of the present invention is as follows:

The present invention provides a sieve tray, comprising:

A panel, wherein the panel is a frame-type structure;

Side plates, the paired side plates are sealed at both open ends of the enclosure plate and are provided with connection holes allowing the drive shaft to penetrate and connect;

A distance ring is supported between the pair of side plates and cooperates with the enclosure plate to define a hollow space between the pair of side plates.

Optionally, the sieve plate is a spot-welded assembled structure.

Optionally, the enclosure plate and the paired side plates are fixed by spot welding.

Optionally, plug welding holes for spot welding are provided at intervals on the edges of the pair of side panels in contact with the enclosure panel.

Optionally, plug welding holes for spot welding are provided at intervals on the edges of the enclosure that are in contact with the paired side panels.

Optionally, the edge of the distance ring protrudes along its axial direction to form a plurality of claws;

The paired side plates are provided with through slots adapted to the claws;

The clamping claw is installed through the through groove.

Optionally, the edge of the claw is recessed to form a first positioning groove adapted to fit with the positioning spacer.

Optionally, an avoidance slope is provided at the end of the claw in the extension direction.

Optionally, the sieve plate is an integrally formed structure.

Optionally, the distance ring extends and protrudes beyond the pair of side plates to form a protrusion.

Optionally, the edge of the distance ring is recessed to form a second positioning groove adapted to fit with the positioning spacer.

Optionally, the outer side surface of the enclosure is flush with the edge of the side panel.

The present invention also provides a disc screen, comprising:

Main frame,

A driving shaft, wherein a plurality of driving shafts are sequentially mounted on the main frame;

Any of the above-mentioned sieve plates are sequentially mounted on the drive shaft to form a screening table for screening and conveying materials.

Optionally, a spacer sleeve is provided between adjacent sieve plates, and the spacer sleeve is adapted to be installed in the first positioning groove of the clamping claw of the adjacent sieve plates.

Optionally, the protrusions of the distance rings of adjacent sieve plates abut against each other.

Optionally, a spacer sleeve is provided between adjacent sieve plates, and the spacer sleeve is adapted to be installed in the second positioning groove of the distance ring of the adjacent sieve plates.

The above solution of the present invention includes at least the following beneficial effects:

The above scheme of the present invention forms a sieve plate by a surrounding plate, a side plate and a distance ring, and the overall structure is simple. While ensuring the overall strength of the sieve plate, the sieve plate is made into a hollow structure, which reduces the weight of the sieve plate and can increase the number of sieve plates installed on the drive shaft, which helps to expand the screening particle size range of the disc sieve, thereby expanding the application range of the disc sieve.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of a sieve plate provided in an embodiment of the present invention when the sieve plate is a spot-welded assembled structure;

FIG2 is a front view of a sieve plate provided in an embodiment of the present invention when the sieve plate is a spot-welded assembled structure;

3 is an exploded schematic diagram of a sieve plate provided in an embodiment of the present invention when the sieve plate is a spot-welded assembled structure;

FIG4 is an enlarged schematic diagram of part A of FIG3 ;

5 is a schematic diagram of the installation of the sieve plate provided in an embodiment of the present invention when the sieve plate is a spot-welded assembled structure;

FIG6 is an enlarged schematic diagram of part B of FIG5 ;

7 is a schematic structural diagram of the sieve plate after the sieve plate is installed on the drive shaft when the sieve plate provided in an embodiment of the present invention is a spot-welded assembled structure;

8 is a schematic diagram of a three-dimensional structure in which the sieve plate provided by an embodiment of the present invention is a spot-welded assembled structure in which plug welding holes are arranged on the enclosure plate;

9 is a front view of the sieve tray provided in an embodiment of the present invention when the sieve tray is an integrally formed structure;

10 is a left view of the sieve tray provided in an embodiment of the present invention as an integrally formed structure;

FIG. 11 is an enlarged schematic diagram of portion C of FIG. 10 .

The following are the descriptions of the reference numerals:

1. Sieve plate; 11. Connecting hole; 12. Plug welding hole; 13. Side plate; 14. Enclosure; 15. Through groove; 16. Distance ring; 17. Claw; 18. First positioning groove; 19. Avoidance slope; 110. Second positioning groove; 2. Drive shaft; 3. Spacer.

DETAILED DESCRIPTION

The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

As shown in FIGS. 1 to 11 , an embodiment of the present invention provides a sieve tray, comprising:

The enclosure 14 is a frame-type structure;

Side plates 13, the paired side plates 13 are sealed at both open ends of the enclosure 14, and are provided with connection holes 11 allowing the drive shaft 2 to pass through and connect;

The distance ring 16 is supported between the pair of side plates 13 and cooperates with the enclosure plate 14 to define a hollow space between the pair of side plates 13 .

In this embodiment, the sieve plate 1 is formed by the enclosing plate 14, the side plate 13 and the distance ring 16. The overall structure is simple. While ensuring the overall strength of the sieve plate 1, the sieve plate is a hollow structure, which reduces the weight of the sieve plate 1 and can increase the number of sieve plates 1 installed on the drive shaft 2, which helps to expand the particle size range of the disc sieve, thereby expanding the application range of the disc sieve.

In this embodiment, the enclosing plate 14 and the side plate 13 are octagonal structures. In specific applications, the enclosing plate 14 and the side plate 13 may be hexagonal or other polygonal structures according to the particle size of the screened material.

In the present embodiment, the connecting hole 11 is a polygonal hole that is compatible with the driving shaft 2; by setting the connecting hole 11 as a polygonal hole that is compatible with the driving shaft 2, it is convenient to accurately fit the sieve plate 1 on the outside of the driving shaft 2, and at the same time, the driving shaft 2 can accurately drive the sieve plate 1 to rotate, which can simplify the connection structure between the sieve plate 1 and the driving shaft 2; in the present embodiment, the connecting hole 11 is a quadrilateral hole. In specific applications, the connecting hole 11 can be a polygonal hole such as a triangular hole or a hexagonal hole.

As shown in FIG. 1 and FIG. 8 , in an optional embodiment of the present invention, the sieve plate 1 is a spot-welded assembled structure.

In this embodiment, the sieve plate 1 is a spot-welded assembled structure, which can reduce the dimensional error of the sieve plate 1 during its manufacture and installation, and can reduce the problem of the sieve plate 1 colliding with the adjacent drive shaft 2 due to the dimensional error of the sieve plate 1. It helps to increase the number of sieve plates 1 installed on the drive shaft 2, and can expand the screening particle size range of the disc sieve.

As shown in FIG. 1 and FIG. 8 , in an optional embodiment of the present invention, the enclosure 14 and the paired side panels 13 are fixed by spot welding.

In this embodiment, the enclosure 14 and the paired side panels 13 are connected by spot welding, which helps to reduce the deformation of the enclosure 14 and the side panels 13 while ensuring the stability of the connection between the enclosure 14 and the side panels 13, ensures the manufacturing accuracy of the sieve plate 1, and can increase the number of sieve plates 1 installed on the drive shaft 2, thereby helping to expand the screening particle size range of the disc sieve.

As shown in FIG. 1 to FIG. 3 , in an optional embodiment of the present invention, plug welding holes 12 for spot welding are provided at intervals on the edges of the paired side panels 13 that are in contact with the enclosure panel 14 .

In this embodiment, plug welding holes 12 are arranged at intervals on the edge of the side panel 13 to facilitate welding of the side panel 13 and the enclosure 14, thereby improving the welding connection strength between the side panel 13 and the enclosure 14, ensuring the stability of the spot welding connection between the side panel 13 and the enclosure 14, and reducing the deformation of the enclosure 14 and the side panel 13.

As shown in FIG. 8 , in an optional embodiment of the present invention, plug welding holes 12 for spot welding are provided at intervals on the edges of the enclosure 14 that are in contact with the paired side panels 13 .

In this embodiment, by arranging plug welding holes 12 at intervals on the edge of the enclosure 14, the welding connection strength between the side panel 13 and the enclosure 14 can be improved, thereby ensuring the stability of the spot welding connection between the side panel 13 and the enclosure 14 while reducing the deformation of the enclosure 14 and the side panel 13; at the same time, it is convenient to carry out outer side welding, so that after the sieve plate 1 and the drive shaft 2 are installed, it is convenient to carry out repair welding.

As shown in FIG. 3 , in an optional embodiment of the present invention, the edge of the distance ring 16 protrudes along its axial direction to form a plurality of claws 17 ;

The paired side plates 13 are provided with through slots 15 adapted to the claws 17;

The claw 17 is installed through the through groove 15 .

In this embodiment, when the sieve plate 1 is manufactured, the distance ring 16 is placed between the two side plates 13, the claws 17 correspond to the through grooves 15, the two side plates 13 are abutted against the two sides of the distance ring 16, the claws 17 pass through the through grooves 15, the enclosure 14 is mounted on the outside of the two side plates 13, the enclosure 14 and the side plates 13 are welded by spot welding, and the manufacture of the sieve plate 1 is completed; the distance ring 16 is positioned between the two side plates 13 by the claws 17 and the through grooves 15, and the side plates 13 can be limited by the claws 17 and the through grooves 15, which helps to reduce the welding deformation of the side plates 13;

In this embodiment, the claw 17 is an arc-shaped plate structure, the claw 17 passes through the through groove 15 on the surface of the side plate 13, and a plurality of claws 17 are provided. The plurality of claws 17 are evenly distributed around the axis of the distance ring 16 as the reference circle, and the annular structure formed by the plurality of claws 17 is plugged into and matched with the spacer sleeve 3; when a plurality of sieve plates 1 are installed on the drive shaft 2, in order to adjust the screening particle size, it is necessary to arrange the spacer sleeve 3 between the adjacent sieve plates 1. During installation, the annular structure formed by the plurality of claws 17 is inserted into the spacer sleeve 3 to achieve fixation between the spacer sleeve 3 and the sieve plate 1, thereby achieving fixation of the spacer sleeve 3, and at the same time, the sieve plate 1 is positioned in the axial direction of the drive shaft 2 through the spacer sleeve 3 to ensure the stability of the sieve plate 1; the annular structure formed by the plurality of claws 17 is used to achieve fixation of the spacer sleeve 3, so that a space can be formed between the spacer sleeve 3 and the drive shaft 2, which helps to reduce the influence of the weight of the spacer sleeve 3 on the load-bearing capacity of the drive shaft 2, thereby increasing the number of sieve plates 1 installed on the drive shaft 2, and expanding the screening particle size range of the disc sieve;

In this embodiment, the number of the claws 17 is three. In specific applications, the number of the claws 17 may also be two, four, etc., which is not specifically limited here.

As shown in FIG. 3 to FIG. 6 , in an optional embodiment of the present invention, the edge of the claw 17 is recessed to form a first positioning groove 18 for matching with the positioning spacer 3 .

In this embodiment, the first positioning grooves 18 on the plurality of claws 17 form an annular groove structure, and the diameter of the annular groove structure is equal to the inner diameter of the spacer 3; by providing the first positioning grooves 18 on the claws 17, the accuracy of the plug-in fit between the claws 17 and the spacer 3 can be improved, and the axial positioning of two adjacent sieve plates 1 can be achieved; the two adjacent sieve plates 1 and the spacer 3 constitute a screening space, and the material particle size can be adjusted by replacing the spacers 3 with different outer diameters and different lengths;

In this embodiment, the through groove 15 is an arc-shaped groove, the arc length of the through groove 15 is equal to the arc length of the claw 17, and the internal width dimension of the through groove 15 is greater than the thickness dimension of the claw 17; the through groove 15 of the above structure can accurately position the claw 17, so that multiple claws 17 can be accurately plugged into the spacer sleeve 3 to achieve axial positioning of the sieve plate 1.

As shown in FIG. 3 and FIG. 4 , in an optional embodiment of the present invention, an avoidance slope 19 is provided at the end of the claw 17 in the extension direction.

In this embodiment, by providing the avoidance slope 19 , it is convenient for the claw 17 to pass through the through slot 15 when assembling the distance ring 16 and the side plate 13 .

As shown in FIG. 9 , in an optional embodiment of the present invention, the sieve plate 1 is an integrally formed structure.

In this embodiment, the sieve plate 1 is formed by integrally forming the enclosure plate 14, the side plate 13 and the distance ring 16. While ensuring the overall strength of the sieve plate 1 and reducing the weight of the sieve plate 1, the overall dimensional accuracy of the sieve plate 1 can be improved, and the problem of the sieve plate 1 on the adjacent driving shaft 2 causing the sieve plate 1 to collide with each other due to the dimensional error of the sieve plate 1 can be reduced, which helps to increase the number of sieve plates 1 installed on the driving shaft 2 and expand the screening particle size range of the disc sieve.

As shown in FIG. 9 and FIG. 10 , in an optional embodiment of the present invention, the distance ring 16 extends and protrudes beyond the pair of side plates 13 to form a protrusion.

In this embodiment, the protruding portion of the distance ring 16 is plugged into the spacer 3. When the sieve plate 1 is installed on the drive shaft 2, the spacer 3 is arranged between two adjacent sieve plates 1, so that the protruding portion of the distance ring 16 is mixed into the spacer 3, so that the fixed connection between the two adjacent sieve plates 1 and the spacer 3 is achieved, and the stability of the spacer 3 and the accurate positioning of the sieve plate 1 along the axial direction of the drive shaft 2 can be ensured. The two adjacent sieve plates 1 and the spacer 3 constitute a screening space, and the material particle size can be adjusted by replacing the spacers 3 with different outer diameters and different lengths.

In this embodiment, the enclosure 14, the side plate 13 and the distance ring 16 are all metal parts, and the enclosure 14, the side plate 13 and the distance ring 16 are integrally cast; by making the enclosure 14, the side plate 13 and the distance ring 16 all metal parts, and integrally cast and molded, and then machining, the tolerance can be accurately controlled, and the dimensional error of the production and installation of the sieve plate 1 itself can be reduced, thereby helping to increase the number of sieve plates 1 installed on the drive shaft 2;

In this embodiment, the distance ring 16 can also be a metal part, and the enclosure 14 and the side plate 13 can be non-metallic parts, and the enclosure 14 and the side plate 13 can be injection molded on the outer cylindrical surface of the distance ring 16; the tolerance can be accurately controlled, and the dimensional error of the production and installation of the sieve plate 1 itself can be reduced, which helps to increase the number of sieve plates 1 installed on the drive shaft 2; at the same time, the overall weight of the sieve plate 1 can be further reduced, and the number of sieve plates 1 installed on the drive shaft 2 can be increased when the load-bearing capacity of the drive shaft 2 remains unchanged.

As shown in FIG. 10 and FIG. 11 , in an optional embodiment of the present invention, the edge of the distance ring 16 is recessed to form a second positioning groove 110 for matching with the positioning spacer 3 .

In this embodiment, the second positioning groove 110 is formed on the outer cylindrical surface of the protrusion of the distance ring 16, and the diameter of the second positioning groove 110 is equal to the inner diameter of the spacer 3; by providing the second positioning groove 110 on the protrusion of the distance ring 16, the accuracy of the plug-in fit between the protrusion of the distance ring 16 and the spacer 3 can be further improved, thereby realizing the axial positioning of two adjacent sieve plates 1.

In an optional embodiment of the present invention, the outer side surface of the enclosure 14 is flush with the edge of the side panel 13 .

In this embodiment, the surface of the sieve plate 1 can be kept in a flush state, thereby preventing materials from remaining on the surface of the sieve plate 1 and ensuring the screening effect of the sieve plate 1;

When the sieve plate 1 is a spot-welded assembled structure, by making the outer side surface of the enclosure 14 flush with the edge of the side plate 13, the surface of the sieve plate 1 can be in a flat plane state, which helps to reduce the deformation of the enclosure 14 caused by cutting and welding, improves the accuracy of the sieve plate 1, and reduces the possibility of collision between the sieve plates 1 on adjacent drive shafts 2 of the disc screen when screening small particle size materials, thereby ensuring normal screening.

An embodiment of the present invention further provides a disc screen, comprising:

Main frame,

A driving shaft 2, wherein a plurality of driving shafts 2 are sequentially mounted on the main frame;

The sieve plate 1 described in any of the above embodiments is sequentially mounted on the drive shaft 2 and forms a sieve table for sieving and conveying materials.

In this embodiment, the sieve plate 1 described in any of the above embodiments is installed on the drive shaft 2. Since the sieve plate 1 reduces the overall weight while ensuring the overall strength, the number of sieve plates 1 installed on the drive shaft 2 can be increased while the load-bearing capacity of the drive shaft 2 remains unchanged, which helps to expand the screening particle size range of the disc sieve, thereby expanding the application range of the disc sieve.

In an optional embodiment of the present invention, a spacer sleeve 3 is provided between adjacent sieve plates 1 , and the spacer sleeve 3 is adapted to be installed in the first positioning groove 18 of the claw 17 of the adjacent sieve plates 1 .

In this embodiment, the sieve plate 1 is a spot-welded assembled structure. When the sieve plate 1 is installed on the drive shaft 2, it is necessary to arrange a spacer 3 between adjacent sieve plates 1. The annular structure formed by a plurality of claws 17 is inserted into the spacer 3 to realize the connection between the spacer 3 and the sieve plate 1. The first positioning groove 18 on the claw 17 can further improve the insertion accuracy and stability of the annular structure formed by the spacer 3 and the plurality of claws 17. The spacer 3 can realize accurate positioning of the sieve plate 1 along the axial direction of the drive shaft 2 to ensure the stability of the sieve plate 1. At the same time, a screening space is formed by the spacer 3 and two adjacent sieve plates 1. By replacing spacers 3 with different outer diameters and different lengths, the particle size of the material can be adjusted to meet different screening particle size requirements.

In an optional embodiment of the present invention, the protrusions of the distance rings 16 of adjacent sieve trays 1 abut against each other.

In this embodiment, the sieve plate 1 is an integrally formed structure. When the sieve plate 1 is installed on the drive shaft 2, the protrusions of the distance rings 16 of adjacent sieve plates 1 abut against each other, so that the sieve plate 1 can be accurately positioned along the axial direction of the drive shaft 2, thereby simplifying the positioning and installation structure of the sieve plate 1. A screening space is formed between the sieve plate 1 and the protrusions of the distance rings 16. By replacing the sieve plate 1 with the distance rings 16 having protrusions of different outer diameters and lengths, the particle size of the material can be adjusted to meet different screening particle size requirements.

In an optional embodiment of the present invention, a spacer sleeve 3 is provided between adjacent sieve plates 1 , and the spacer sleeve 3 is adapted to be installed in the second positioning groove 110 of the distance ring 16 of the adjacent sieve plates 1 .

In this embodiment, the sieve plate 1 is an integrally formed structure. When the sieve plate 1 is installed on the drive shaft 2, it is necessary to arrange a spacer 3 between adjacent sieve plates 1. The protrusion of the distance ring 16 is inserted into the spacer 3 to realize the connection between the sieve plate 1 and the spacer 3. The second positioning groove 110 on the protrusion of the distance ring 16 can improve the insertion accuracy and stability of the protrusion of the distance ring 16 and the spacer 3. The spacer 3 can realize the accurate positioning of the sieve plate 1 along the axial direction of the drive shaft 2 to ensure the stability of the sieve plate 1. At the same time, a screening space is formed with the two adjacent sieve plates 1 by the spacer 3. By replacing the spacers 3 with different outer diameters and different lengths, the particle size of the material can be adjusted to meet different screening particle size requirements.

The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims (9)

1. A sieve tray, characterized in that it comprises: A panel (14), wherein the panel (14) is a frame-type structure; Side plates (13), the paired side plates (13) blocking the open ends on both sides of the enclosure plate (14), and having connection holes (11) allowing the drive shaft (2) to penetrate and connect; A distance ring (16), the distance ring (16) being supported between the pair of side plates (13) and cooperating with the enclosure plate (14) to define a hollow space between the pair of side plates (13); The edge of the distance ring (16) protrudes along its axial direction to form a plurality of claws (17); The paired side plates (13) are provided with through slots (15) adapted to the claws (17); The clamping claw (17) is installed through the through slot (15); The edge of the claw (17) is recessed to form a first positioning groove (18) adapted to match the positioning spacer (3). 2. The sieve plate according to claim 1, characterized in that the sieve plate (1) is a spot-welded assembled structure. 3. The sieve plate according to claim 2, characterized in that the enclosure plate (14) and the paired side plates (13) are fixed by spot welding. 4. The sieve plate according to claim 3, characterized in that plug welding holes (12) for spot welding are provided at intervals on the edges of the paired side plates (13) in contact with the enclosure plate (14). 5. The sieve plate according to claim 3, characterized in that plug welding holes (12) for spot welding are provided at intervals on the edges of the enclosure plate (14) in contact with the paired side plates (13). 6. The sieve plate according to claim 1, characterized in that an avoidance slope (19) is provided at the end of the claw (17) in the extension direction. 7. The sieve plate according to claim 1, characterized in that the outer side surface of the enclosure plate (14) is flush with the edge of the side plate (13). 8. A disc screen, characterized by comprising: Main frame, A driving shaft (2), wherein a plurality of the driving shafts (2) are sequentially mounted on the main frame; The sieve plate (1) according to any one of claims 1 to 7, wherein the sieve plate (1) is sequentially mounted on the drive shaft (2) and forms a screening table for screening and conveying materials. 9. The disc screen according to claim 8, characterized in that a spacer sleeve (3) is provided between adjacent sieve plates (1), and the spacer sleeve (3) is adapted to be installed in the first positioning groove (18) of the claw (17) of the adjacent sieve plate (1).